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1 Bulletin of the Polish Academy of Sciences. Earth Sciences

1 2001

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Geomorphological and Geophysical Studies in a Subarctic Environment of Karkevagge Valley, Abisko Mountains, Northern Sweden

Baumgart-Kotarba M., Kędzia S., Kotarba A., Mościcki J.

Bulletin of the Polish Academy of Sciences. Earth Sciences

2001

Vol. 49, nr 2

123-135

A detailed geomorphological map of the Karkevagge valley (Northern Sweden), combined with geophysical soundings, provides quantitative measures of landforms and deposits within this most typical alpine valley in the Scandinavian Mountain range. Asymmetric development of the Karkevagge slopes during postglacial time, well documented on geomorphological map, appears to have been connected to the dominant westerly winds and precipitations. Geoelectical survey proves, that during final stage of the last glaciation, a considerable erosion by cirque and valley glaciers, took place. An effect of selective glacial overdeepening is evidenced on a cross-profile at the junction of two descending (Rissajaure and Karkereppe) glaciers. Geophysical soundings support Anders Rapp's hypothesis of 1992 concerning conservation of cold-based ice glacial on summit plateaus, and simultaneous, strong glacial erosion due to wet-based ice flow in cirque glaciers and glacial troughs.